This sure speaks well of the Canon 2X extender. Impressive. Then again you are using a 5Dsr.
My Canon 2x III extender has no loss of sharpness. But, it has to be used with the right camera and lens. I can easily photograph a car license plate and read it in the camera before I put it in the computer. So, the extra detail I get with the Canon 2x extender helps a lot concerning the larger image. Thank you very much, FiddleMaker.
Gee Regis, it won't be long before you reach the 25,000 posts bench mark
Do i get some type of reward? Just kidding. During the Bald Eagle season (now) and the Osprey season (early April to early September) I take a lot of pictures and post many of the good ones. Plus, in October I take many Fall color scenic shots.